TRSGPCalloutRectangle Properties

CalloutLength

The length of the callout pointer.

TRSGPCalloutRectangle renders the callout pointer as an isosceles triangle on one of its sides. CalloutLength is the height of this triangle. The triangle is included in the bounding rectangle ShapeRect of the TRSGPCalloutRectangle object; therefore, the longer CalloutLength is, the smaller the height (or width) of the callout rectangle itself is, and vice versa. Keeping the bounding rectangle the same size while changing the length of the triangle CalloutLength requires changing the height or width of the callout rectangle TRSGPCalloutRectangle itself, depending on which side the triangle appears.
 

CalloutOffset

The position of the callout pointer, relative to the center or edges of the side on which it appears.

TRSGPCalloutRectangle renders the callout pointer as an isosceles triangle on one of its sides. The CalloutPosition defines the side on which the triangle appears.

• If CalloutOffset is zero, then the triangle is centered on the specified side.
 

• If CalloutOffset is positive, then the closest point of the callout pointer to a corner of the triangle has the CalloutOffset offset on the following sides:
Top--offset to the right from the upper-left corner.
Left--offset to the bottom from the upper-left corner.
Right--offset to the bottom from the upper-right corner.
Bottom--offset to the right from the lower-left corner.
 

• If CalloutOffset is negative, then the closest point of the callout pointer to a corner of the triangle has the CalloutOffset offset on the following sides:
Top--offset to the left from the upper-right corner.
Left--offset to the top from the lower-left corner.
Right--offset to the top from the lower-right corner.
Bottom--offset to the left from the lower-right corner.